Inking attachment for printing-presses



(No Modem 2 Sheets-Sheet 1.

J. R. BR'ODIE. v INKING ATTAGHMENT FOR PRINTING PRBSSES. No. 376,426. Patented'Jan. 17, 1888.

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(No Model.) 2 Sheets-Sheet 2.

J. R. BRODIE.-

INKING ATTACHMENT FOR PRINTING PRESSES. N0; 376,426.

Patented Jan. 17, 1888.

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UNITED "STATES PATENT vOFFICE.

/ JAMES R. BRODIE, OF SAN FRANCISCO, CALIFORNIA.

INKING ATTACHMENT FOR PRlNTlNG-PRESSES.

SPECIFICATION forming part of Letters Patent No 37 6,426, dated January 17, 1888,

Application filed June 15.1887. Serial No. 241,421. (No model.)

To all whom/it may concern.- v

Be it known that I, JAMES R. BRODIE, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Inking Attachments for Printing-Presses; and I do hereby declare that the following is a full, clear, and exact description of my saidinvention, reference being had to the drawings that accompany and form a part of this specification.

My invention relates to an automatic inking attachment for Gordon printing-presses and others of that class which have a rotating distributing-disk and oscillating inking-roller; and the invention consists in certain novel construction and combination of fountain and operating mechanism for application and opera tion, as hereinafter set forth. As an attachment to printing-presses of the Gordon type it replaces the brayer and the well known op eration of supplying ink to the disk by hand.

It is entirely automatic in its operation, and

is adapted for use on all presses of the above- 7 mentioned kind.

The following description fully explains the nature of the said invention and the manner in which I apply and carry out the same, reference being had to the accompanying drawings by figures and letters.

Figure l is a perspective view of the inking apparatus and parts of the bed of a Gordon press with my invention applied thereto. Fig. 2 is a side elevation with the bed partlyin section. Fig. 3 is a top View showing the distributing-disk and my improvement combined therewith for operation. Fig. 4 is a view of the fountain from the rear. Fig. 5 is a perspective view of the fountain and its operating mechanism. Fig. 6 is a detail view showing the connection of rod M to the pawl L.

A is a trough or receptacle for the ink, and A* is a roller mounted on centers ac, to rotate in the trough and take up the ink in the usual manner of fountain-rollers.

B is a standard, having a socket fixed to the frame of the press at some point in front of the distributing-disk D, to support the ink-trough in such position below the disk or between it and the chase of the press that the rollers take the ink from the fountain roller A* before running over the disk.

The trough of the fountain has a stud or short post, A, on the.bottom,that fits into and is capable of a short vertical movement in the socket, the extent of which movement is snfficient to permit the fountain to be raised up into action or drawn down clear of the pressrollers. This movement is so timed that the fountain-roller delivers ink to the press-rollers on their upward run, but does not come in contact with them on their movement-downward or toward the form,and it is obtained from some suitably-moving part ofthe press mechanism such, for instance, as the oscillating frame that carries the inking-rollersby setting cam surfaces or inclines E under the trough and moving one of them on the post as a center against the other by means of a vibrating arm, F.

The manner of producing the desired up- .and-down movement of the trough to throw the roller into and out of action with the inking-rollers will be understood from Figs. 2 and 4 of the drawings. The circular incline E is fixed, but the one is movable around the post and has an arm projecting laterally beyond the frame of the press, the end of which has a friction-roller, f, to run against the inner surface of the roller-carrier'W. The arm F is jointed at f to yield when pressed against in one direction, but to be rigid in the other direction, and the spring h holds out the arm and returns itinto position. Movement of the arm in an arc of which the post is the center therefore turns the incline E and raises the fountain up into position; but this takes place only when the arm is struck by the carrier W at the upward run of therollers,for on the contrary movement the arm yields at the hingejoint without acting on the incline.

The two surfaces E E* are held together by the spring H, the end of which is fixed at I to the casting of the press, and the strength of this spring is sufficient to bring the trough down after each elevation. The arm F also turns the fountain-roller with an intermittent motion to present a fresh surface at each contact with the inking-rollers. This is done by a ratchet-wheel, K, on the roller-shaft a and a vibrating pawl, L, pivoted to its frame at m. A rod, M, forms a part of the frame that carries the pawl, and is attached to it at 1), the end of said rod being bent and carried through a cam-slot, I, in the arm. Ihe pawl therefore engages the teeth of the ratchet-wheel and turns the roller at each movement of the arm in one direction, but is inactive in the contrary movement. As thus applied and operated it will be seen that the fountain-roller is thrown up in the path of the inking-rollers as they run up over the distributing-plate; but on the return movement it is brought out of contact and the rollers pass from the plate ordisk to the form without touching the fountaiirroller. By this means the inking-rollers take ink from the fountain and distribute it thoroughly upon the disk by running first upward from the fountain and then downward toward the form. \Vith presses having a throw-off this inking operation can be repeated several times before the impression is taken, and thus some kinds of work that call for heavier inking can be run off withontdisturbing the adjustment of the fountain.

A regulatirig-scraper, R, is placed under the fountain-roller to bear against its face, and a screw, S, at the front controls the space between the two surfaces. This is the usual device for controlling the quantity of ink taken up by the roller in such fountains.

The fountain can be thrown outof action at any time without disturbing its adjustment by simply displacing the spring and turning back the arm F at thejoint, so that it takes the position indicated by dotted lines in Fig. 5. The carrier-arm of the inkingrollers will then oscillate back and forth without operating the fountain-roller.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In combination with the distributingdisk and inking-rollers of a printing'press, an inking-fountain having a fountain-roller located for operation between the disk and the form, and means, substantially as described, consisting, essentially, ofasocket forthe fountain, inclines E E and vibrating arm F, all

arranged for throwing said roller into and out a of action with the press-rollers.

2. In a printing-press having a distributing-disk and oscillating rollers, an inking device consisting of fountain, fountain-roller, socket, inclines, vibrating arm, and ratchet and pawl placed for operation below the disk, or between it and the chase, and adapted to supply ink to the press-rollers on their upward movement, but to be out of contact with them on their return movement, as herein set forth.

3. In a printing-press having a distribut ing-disk and oscillating inking-rollers, the combination, with these parts, of an inking fountain and a fountainroller having movement into and out of the path of the inkingrollers, as described, and mechanism consisting of inclines, vibrating arm, ratchet-wheel and pawl, and connecting-rod adapted to be actuated, as described, from some moving part of the press to operate the fountain-roller, as set forth.

4. The heroin-described inking attachment for printing-presses, consisting of the trough A, roller A inclines E E vibrating arm F, and the ratchet-wheel and pawl, and connecting-rod, constructed for operation as set forth.

5. In a 1: rinting'press, the combinationot' the trough A, having post A socket B, containing said post, roller A fixed-incline E, movable incline 10*, spring I-I, arm F, jointed atfand having rollerf", spring h, and rollercarrier XV, all arranged substantially as described.

6. In a printingprcss, the combination of trough A, roller A inclines E E arm F, said roller A having shaft a, provided with ratchet-wheel K,and the pawl L, pivoted at m to its frame, which has a bent rod, M, passing through slot 1 in arm F, all arranged and operating as specified.

In testimony that I claim the foregoing I have hereunto set my hand and seal.

JAMES R. BRODIE.

\Vitnesses:

SAMUEL VALLEAU, E. J. HOLT. 

